vm inaccessible

[bk201]

I just got a windows xp guest running on my gentoo box. I then unmounted the windows iso and shut down the vm so I could mount the guestadditions iso and boot into safemode. But now I get this

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~ $ VBoxManage list vms
VirtualBox Command Line Management Interface Version 3.0.8_OSE
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.

"<inaccessible>" {10020013-4f85-45a9-b067-1c66bfa33097}

and I can no longer start the vm. Did I unmount something I shouldn't have?

[Perryg]

Did you start the reboot process before you un-mounted the install CD?
Other than that I am not sure what you did or what happened.
You will need to give us a detailed step by step to determine what happened.

[bk201]

I had the vm running fine and had rebooted it several times. The first time I went to unmount the windows iso with VBoxManage closemedium dvd <file.iso> it gave me an error that the vm was still using it, even though i had shut it down. So I booted the vm back up and did "VBoxManage controlvm winxpro dvdattach none" and this successfully unmounted it. Shut down vm and closemedium now worked. Then I did VBoxManage openmedium to load the guestadditions iso and this was successful. Went to start the vm again and I get the error. I have no idea where I could have messed anything up, all I did was load/unload some virtual isos from the dvd drive

If I try to register the vm again I get this

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ERROR: Assertion failed at '/var/tmp/portage/portage/app-emulation/virtualbox-ose-3.0.8/work/VirtualBox-3.0.8_OSE/src/VBox/Main/MachineImpl.cpp' (5030) in nsresult Machine::loadSettings(bool).
Unexpected exception 'N3xml11EInvalidArgE' (In 'xml::File::File(RTFILE, const char*)', '/var/tmp/portage/portage/app-emulation/virtualbox-ose-3.0.8/work/VirtualBox-3.0.8_OSE/src/VBox/Main/xml/xml.cpp' at #207).
Please contact the product vendor!
Details: code NS_ERROR_FAILURE (0x80004005), component VirtualBox, interface IVirtualBox, callee nsISupports
Context: "OpenMachine(Bstr(a->argv[0]), machine.asOutParam())" at line 219 of file VBoxManage.cpp

which makes no sense to me as /var/tmp/portage is a temporary location where portage compiles packages before installing them. Now that its installed the directory is empty.

[bk201]

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~$ VBoxManage showvminfo 10020013-4f85-45a9-b067-1c66bfa33097

VirtualBox Command Line Management Interface Version 3.0.8_OSE
(C) 2005-2009 Sun Microsystems, Inc.
All rights reserved.

Name:            <inaccessible!>
UUID:            10020013-4f85-45a9-b067-1c66bfa33097
Config file:     /home/alucard/vbox/winxpro/winxpro/winxpro.xml
Access error details:
ERROR: Could not load the settings file '/home/alucard/vbox/winxpro/winxpro/winxpro.xml'.
Element '{http://www.innotek.de/VirtualBox-settings}Image', attribute 'uuid': [facet 'pattern'] The value '{00000000-0000-0000-0000-000000000000}' is not accepted by the pattern '.*[1-9A-Fa-f]+.*'.
Element '{http://www.innotek.de/VirtualBox-settings}Image', attribute 'uuid': '{00000000-0000-0000-0000-000000000000}' is not a valid value of the atomic type '{http://www.innotek.de/VirtualBox-settings}TNonNullUUID'
Details: code VBOX_E_XML_ERROR (0x80bb000a), component VirtualBox, interface IVirtualBox, callee <NULL>

Figured it out, there was an eronious entry for the dvd drive in the settings xml file with an invalid uuid. Deleted the entry and everythings working again.